Effects of Stroke (Brain Attack)

What are the effects of stroke?

The effects of stroke (brain attack) vary from person to person based on the type, severity, and location of the stroke. The brain is extremely complex and each area of the brain is responsible for a special function or ability. When an area of the brain is damaged, which typically occurs with a stroke, an impairment may result. An impairment is the loss of normal function of part of the body. Sometimes, an impairment may result in a disability, or inability to perform an activity in a normal way.

The brain is divided into three main areas:

Cerebrum (consisting of the right and left sides or hemispheres)

Cerebellum

Brain stem

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Depending on which of these regions of the brain the stroke occurs, the effects may be very different.

What effects can be seen with a stroke in the cerebrum?

The cerebrum is the part of the brain that occupies the top and front portions of the skull. It is responsible for control of abilities, such as movement and sensation, speech, thinking, reasoning, memory, sexual function, and regulation of emotions. The cerebrum is divided into the right and left sides, or hemispheres.

Depending on the area and side of the cerebrum affected by the stroke, any, or all, of the following body functions may be impaired:

Movement and sensation

Speech and language

Eating and swallowing

Vision

Cognitive (thinking, reasoning, judgment and memory) ability

Perception and orientation to surroundings

Self-care ability

Bowel and bladder control

Emotional control

Sexual ability

In addition to these general effects, some specific impairments may occur when a particular area of the cerebrum is damaged.

Visual problems, including the inability to see the right visual field of each eye (homonymous hemianopsia)

Impaired ability to do math or to organize, reason, and analyze items

Behavioral changes such as depression, cautiousness, and hesitancy

Impaired ability to read, write, and learn new information

Memory problems

What effects can be seen with a stroke in the cerebellum?

The cerebellum is located beneath and behind the cerebrum towards the back of the skull. It receives sensory information from the body through the spinal cord and helps to coordinate muscle action and control, fine movement, coordination, and balance.

Although strokes are less common in the cerebellum area, the effects can be severe. Four common effects of strokes in the cerebellum include:

Inability to walk and problems with coordination and balance (ataxia)

Dizziness

Headache

Nausea and vomiting

What effects can be seen with a stroke in the brain stem?

The brain stem is located at the very base of the brain right above the spinal cord. Many of the body's vital "life-support" functions such as heartbeat, blood pressure, and breathing are controlled by the brain stem. It also helps to control the main nerves involved with eye movement, hearing, speech, chewing, and swallowing. Some common effects of a stroke in the brain stem include problems with the following: